Patient getting CT scan

A patient undergoes a CT scan at Cedars-Sinai Medical Center in Los Angeles. Researchers reported that CT scans for lung cancer screening may help detect COPD, a major killer of people who smoke.

A patient undergoes a CT scan at Cedars-Sinai Medical Center in Los Angeles. Researchers reported that CT scans for lung cancer screening may help detect COPD, a major killer of people who smoke. (Ken Hively / Los Angeles Times)

A patient undergoes a CT scan at Cedars-Sinai Medical Center in Los Angeles. Researchers reported that CT scans for lung cancer screening may help detect COPD, a major killer of people who smoke.Ken Hively / Los Angeles Times